Sepolicy: Allow socket creation, permission to access IOP/servtracker.

Netlink Socket : Add a policy for allowing to create a socket from perf hal
and getting data
IOP : perf-hal needs access to IOP serivice.
ServcTracker: Perf-hal needs access to service tracker Hal.
Meminfo, KGSL_MEM : Accessing proc_meminfo and kgsl sys_fs nodes for reading data.

Change-Id: Ic12bf00bb8c9227221556c043d8169c4611f2b69